HTS 8404

Auxiliary plant for use with boilers of heading 8402 or 8403 (for example, economizers, super-heaters, soot removers, gas recoverers); condensers for steam or other vapor power units; parts thereof:

Duty Rates

General (Column 1 - MFN)
This rate follows a special calculation or is subject to specific conditions.

Product Category

Machinery and Electrical Equipment

This chapter includes boilers, pumps, engines, motors, generators, transformers, electrical machinery, and related mechanical equipment.

Classification Details

FieldValue
HTS Code8404
DescriptionAuxiliary plant for use with boilers of heading 8402 or 8403 (for example, economizers, super-heaters, soot removers, gas recoverers); condensers for steam or other vapor power units; parts thereof:
Chapter84 - Machinery and Electrical Equipment
General Duty Rate
Rate TypeOther
Special Rates

Related HTS Codes

Other tariff codes under the same heading:

Frequently Asked Questions

What is the HTS code 8404 used for?
HTS code 8404 is the harmonized tariff schedule code for Auxiliary plant for use with boilers of heading 8402 or 8403 (for example, economizers, super-heaters, soot removers, gas recoverers); condensers for steam or other vapor power units; parts thereof:. This code is used to classify and identify this product type for customs clearance, duty calculation, and trade statistics.
What is the Column 2 rate for HTS 8404?
The Column 2 rate is the tariff duty rate applicable to goods from countries that do not have normal trade relations with the United States. This rate is typically higher than Column 1 (Most Favored Nation) rates and is rarely used in modern trade due to most-favored-nation agreements.
Do I need a customs broker to import goods classified under HTS 8404?
While not always required, using a licensed customs broker is highly recommended for most imports. A customs broker can help ensure proper HTS classification, prepare customs documentation, pay duties correctly, and avoid delays or penalties. Your broker should be familiar with Machinery and Electrical Equipment products.
Which countries receive special tariff rates for HTS 8404?
Multiple free trade agreements and trade preference programs provide reduced or free tariffs for eligible HTS classifications. Common programs include USMCA (Canada, Mexico), various bilateral FTAs (Korea, Australia, Singapore), GSP for developing countries, and AGOA for eligible African nations. Check the special rates section on this page.
How does HTS code 8404 affect my import costs?
The HTS code determines the applicable duty rate (either free or a percentage/specific amount), whether your product qualifies for trade agreement benefits, any quota restrictions, and special documentation requirements. Proper classification directly impacts your import expenses, so verify the correct code with your supplier or a customs professional.